SOLUTION: A 10-lb bag of mixed nuts contains 20% peanuts. How many pounds of peanuts should be added to change the mixture to 80% peanuts?

Question 491167: A 10-lb bag of mixed nuts contains 20% peanuts. How many pounds of peanuts should be added to change the mixture to 80% peanuts?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = pounds of peanuts to be added
pounds of peanuts in 10 pound bag
In words:
(final pounds of peanuts) / (final pounds of mixture) = 80%

30 pounds of peanuts should be added
check:

OK
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